Prism.languages.go = Prism.languages.extend("clike", {
  string: {
    pattern: /(^|[^\\])"(?:\\.|[^"\\\r\n])*"|`[^`]*`/,
    lookbehind: true,
    greedy: true,
  },
  keyword:
    /\b(?:break|case|chan|const|continue|default|defer|else|fallthrough|for|func|go(?:to)?|if|import|interface|map|package|range|return|select|struct|switch|type|var)\b/,
  boolean: /\b(?:_|false|iota|nil|true)\b/,
  number: [
    // binary and octal integers
    /\b0(?:b[01_]+|o[0-7_]+)i?\b/i,
    // hexadecimal integers and floats
    /\b0x(?:[a-f\d_]+(?:\.[a-f\d_]*)?|\.[a-f\d_]+)(?:p[+-]?\d+(?:_\d+)*)?i?(?!\w)/i,
    // decimal integers and floats
    /(?:\b\d[\d_]*(?:\.[\d_]*)?|\B\.\d[\d_]*)(?:e[+-]?[\d_]+)?i?(?!\w)/i,
  ],
  operator:
    /[*\/%^!=]=?|\+[=+]?|-[=-]?|\|[=|]?|&(?:=|&|\^=?)?|>(?:>=?|=)?|<(?:<=?|=|-)?|:=|\.\.\./,
  builtin:
    /\b(?:append|bool|byte|cap|close|complex|complex(?:64|128)|copy|delete|error|float(?:32|64)|u?int(?:8|16|32|64)?|imag|len|make|new|panic|print(?:ln)?|real|recover|rune|string|uintptr)\b/,
});

Prism.languages.insertBefore("go", "string", {
  char: {
    pattern: /'(?:\\.|[^'\\\r\n]){0,10}'/,
    greedy: true,
  },
});

delete Prism.languages.go["class-name"];
